Process of incasing liquid or semiliquid goods.



No. 636,3l7.- Patented Nov. 7, I899.

E. VON BUHLER. PROCESS OF INCA SING LIQUID 0R SEMILIQUID GOODS.

(Afiplica-tion flied June s, 1898.)

(-No Mod el.)

lli'ttrmis es Mentor w? 7 Z Attorney .c. m: nnnn l5 Minus :0. mamuma. msumcwn. n

UNITED STATES PATENT EEioE.

EMIL voN BI'iH'LER, or BERLIN, GERMANY.

PROCESS OF INCASING LIQUID OR SEMILIQUID GOODS.

SPECIFICATION forming part of Letters Patent No. 636,317, dated November '7, 1899. Application filed June 3, 1898. Serial No. 682,449. (No specimens.)

T0 aZZ whom it may concern:

Be it known that I, EMIL VON Bi'IHLER, a subject of the German Emperor, residing at Berlin, in the Kingdom of Prussia, Germany, have invented certain new and useful ID1- provements in Incasing Liquid, Semiliquid, and other Goods, of which the following is a specification.

My invention relates to a process forincas- 'ing liquid, semiliquid, and other goods, particularly sterilized foods; and it consists therein that the goods to be incased are first charged into a tube of thin sheet metal of any suitable form in cross-section, and then the tube is divided by squeezing or stamping narrow ring-strips of its wall into a number of air-tight and water-tight compartments each holding incased within itits .due proportion of the contents of the tube. By cutting through the squeezed ring-strips in the middle single filled capsules perfectly air-tight and watertight are obtained.

The accompanying drawings illustrate my invention in incasing liquid or semiliquid goods. I

Figure 1 represents a side View; Fig. 2, a top View. Fig. 3 is a modification.

A tube 17, of thin sheet metal, of any suitable length, and preferably'dval in cross-section, is provided with a stop-cock g and is placed in adjustable communication through a pipe with a vessel at, from whichit is charged with the desired liquid or semiliquid. Upon completion of the charging operation the charged tube, commencing at the free end of the same, is squeezed or stamped, by means of a stamping apparatus provided for the purpose with smooth narrow stamping-jaws 0 0 in such a Way as to form a number of air-tight and water-tight compartments each holding incased within it its due proportion of the contents of the tube. That portion of the charge which is pressed outward in the stamp ing operation flows back into the vessel (1. By cutting off the compartments single-filled capsules perfectly air-tight and water-tight are obtained. For greater security the out surfaces may be folded over or soldered, and for facilitating the subsequent opening thereof a wire may be laid in the fold or soldered place of one of the ends of the capsule, the

contents of which are discharged as desired in the same way as with the well-known paint or color tubes, by pressing the surfaces of the same together, commencing at the end.

The operation of separating the compartments or capsules may be simplified by combining with the stamping apparatus a cutting mechanism for cutting off the compartments simultaneously with or immediately after their formation. Stampingjaws by which both proceedings are at the same time executed may, for example, receive the form represented in Fig. 3.

The incasing of liquid or semiliquid goods according to the present proceeding affords, in comparison with the former ones, very essential advantages. Above all, the production on a large scale can be much more quickly and much more cheaply effected. In the former methods of conserving by protection against air the air in the capsules is, as is known, never completely driven out, but before their closingonlyrarefied by heating. Theinclosed air of course always exerts disadvantageous influence on the duration of conserving. In the present process. the goods to be incased do not at all come into contact during the incasing with the air, for the latter is already when charging the tube completelydriven out through the stop-cock g. Moreover, at the formation of the compartments the incased goods are strongly compressed and the walls of the tube correspondingly driven asunder, by which a spring tension of the latter is brought about. By this the incased goods are always kept under constant pressure even if differences of temperature cause changes of volume of the incased goods, and any air entering the contents is prevented at all events. These advantages are of particular value for such liquid and semiliquid goods which before have been sterilized, and in order to remain sterile neither with the air nor with not sterilized cases are allowed to come into con tact. In this case after an already wellknown proceeding the vessel a, which must be closed, and the tube 1) are brought in communication with the sterilizing apparatus, first sterilized, and then the goods to be incased drawn ofi under pressure.

For incasing goods other than liquids or semiliquids-for instance, pulverulent or granular substances-the method of charging the tube is modified in an obvious manner.

Having fully described my invention and set forth its merits, What I claim, and desire to secure by Letters Patent, is

The process for incasing liquid, semiliquid and other goods by bringing a tube of thin sheet metal of any suitable form in cross-section in communication with a vessel filled with said goods and after said tube has been charged, by flatly squeezing or stamping narrow ring-strips of the wall of said tube beginning at the free end and at each stamping pushing back a part of the contents into the vessel, such producing a number of air-tight and water-tight compartments, and by cutting off said compartments, substantially as described.

In witness whereof I have hereunto signed my name, this 21st day of May, 1898, in the presence of two subscribing witnesses.

EMIL VON BUIILER.

Witnesses:

O. H. DAY, HENRY HASPER. 

